Antifriction agitator



April 24, 1928.

J. B. HINSHA'W ANTIFRICTION AGITATOR Filed Sept. 24. 1924 2 Sheets-Sheet1 Hum MU H VHU Pl H H H -HHHW ,t N mw fiw k/ J. B. HINSHAW ANTIFRICTIONAGITATOR April 24. 1928.

2 Sheets-Sheet 2 Filed Sept. 24. 1924 Patented Apr. 24, 1928. V

UNITED STATES.

Q g 1 7 551 PA TEN r OFFICE JOHN BENJAMINE HINSHAW, or TQPEKA, Kansas.

AN'I'IFRICTION .AGI'IATOB.

Application filed September 24,1924. Serial No. 739,593.

I milk in a manner to permit swinging movement thereof similar to theaction of a pendulum, the bearingpoints for the swing ingly mountedcoolingcoil being in the form I,

of a knife edge for purposes of reducing friction and eliminating theuse of the usual rotatable age.

oiled bearing required for a tator.

With the above others that will appear as the-nature of the invention isbetter understood, the same consists of the novel form, combination andarrangement of parts hereinafter more fully described, shown in theaccompanying drawings and claimed. a

In the drawings, wherein like reference characters designatecorresponding parts throughout the several views, Figure 1 is a sideelevational View, partly broken away, of an anti-friction agitatorconstructed in accordance with the present invention showing the coolingcoil rockingly suspended within the vat andthe devices for elevating thecoil from the vat, I

Figure 2 is an end elevational-view of the device showing the coolingcoil in dotted lines elevated above the vat and the mechanism foraccomplishing swinging movement of the coil within the'vat, i V a Figure3 is an opposite end elevational view of the device showing theanti-friction knife edge suspension for-the cooling coil,

Figure il shows a fragmentary top plan view and end elevation of theliquid or milk receiving trough for the vat, and J 1 Figure 5 is afragmentary detail sectional view showing the bearings for the end ofthe coil positioned outwardly of each end of the vat. 7 In the generaltype-of agitators and cool ing devices for liquids, such as 'milkcooling vats, it has heretofore been customary to provide a rotatableagitator within a vat that has end bearings extending through the endwalls of the vat that require lubrication, and oil and other foreignmatter pass from the general objects in view and upper side of. thevatf.

bearings into the vat and contaminate the liquldtherein. 1n the presenttype of agitator and cooling deviceias disclosed in this application,the agitator is swingingly mounted withinthcvat for rocking movement andthe bearings for the cooling device embody a knife edge suspensiondisposed outwardly of the vatand being of a nature not to requirelubrication of any character. The apparatus embodiesa double walled vatmounted uponsupporting feet 1 of the type best illustrated in Figs. 2and 3, the vat being-of elongated and substantially semicircularformation with the feet 1 and the connecting bridge 2 for the feetsupporting the outer wall 3. End walls .41; and -57 con.-

stantially;semi-circular elongated wall 6 is spaced from the outer gwall3 and connected hyend walls 7 forming an intermediateair space 8 asshown in 5. The open upper side of the vat is closed by a ,coverformedof side sections 8 hinged to the .Iccntral hori: zontal section 9 thatcompletely coversthe A coolin thereof, the block having a socket '11therein that opens at the upper edge thereof and terminating in aV-shaped pocket- 11* at the lower end as shown in Figs. 2 and 3. Ahorizontal pipe 12 extends lo gitudinally of the vat with theendsthereof projecting through the end walls and through the openings 11in the blocks 10, a bearing, 13 being secured to each end ofthepipeoutwardly of the adjacent end walls of the vat and carrying a dependingknife edge lel engaging the crotch of the pocket- 11?. An elongatedcoiled pipe 15 has its ends16 tapped into the pipe 12 adjacent the endsthereof at points spaced inwardly of the inner end walls 7 t andsaidpipe coil 15 furthercommunicates with the pipe l2xby the spaced pipesections 17 as shown in Fig. 1. Thecoilcd pipe 15 is further supportedupon the pipe 12 by brackets 18 to provide asubstantially rigidconnccted as at 21. Either of the hose sections 20 may bethe inlet oroutlet and it will be seen that a cooling medium is caused to flow 'nectthe outer wall 3, while the inner sub; I

device is suspended withinlthe vat for swinging or rocklng movement andjects outwardly of the pulley wheel 23 as shown in Figs. 1 and 2. Arocking arm 26 depends from a hub 27 that is fixed to the pipe 12 asshown in Fig. 1, the lower end of the arm 26 being bifurcated to provideside portions 28 that are spaced at their lower ends as shown in Fig. 2with theeccentric V blocks 80 at each end of the vat.

pin 25 freely extending between the side portions of the rocker arm. Itwill there fore be seen that when the pulley wheel .3 is rotated, rockmgor swinging movement 18 imparted to the rocker arm 26 which in turnswlngs the coiled pipe 15 within the vat in a manner similar to theaction of a pendulum. I

To facilitate cleaning the vat and the re moval of the coiled pipe 15, aframe structure is superposed upon the vat and includes corner legs 29secured at their lower ends to the upper side edges of the end walls 4and 5,'the legs 29 being inclined toward each other and secured to thelock 30 while a longitudinally extending rod 31 connects the A rod orshaft 32 extends longitudinally of the vat and is supported exteriorlythereof in bear ings 33, a Windlass 34- being secured to each end of theshaft 32 and positioned outwardly of the opposite end walls 41 and 5,the shaft being rotated through the medium of the hand crank 35. Eachend of the rod 31 supportsa pulley 36 outwardly of the supporting blocks30 directly above an eye-bolt 37 carried by each bearing 13. Cables 38anchored at one end to the windlasses 34 pass upwardly over the pulleys36 and clownwardly for connection to the eye-bolts 37 as shown in Figs.2 and 3. Upon removing the cover to the vat and operating the shaft 32by the crank handle 35, the cables 38 are wound upon the windlasses 3 1with the pipe section 12 and the coiled pipe 15 elevated from the vattogether with the rock arm 26, it being understood that the flexiblehose 20 is to be disconnected from the elbow sections 19 at theirconnections'21. To facilitate filling the vat with the liquid to beagitated and cooled, the central horizontal cover section 9 is formedwith an elongated opening to receive the trough 39 that has a series ofperforations or openings 40 in the bottom wall thereof to cause an evendistribution or supply of the liquid over the coiled pipe 15. The liquidis drained from the vat by the faucet 41 connected to the end wall asshown in Figs. 1 and 3.

From the above detail description of the apparatus, it is believed thatthe construct-ion and operation thereof will at once be apparent, itbeing noted that by the provi sion of the swingingly mounted or rockingcoiled pipe 15 to accomplish the agitation and cooling of the liquidwithin the vat, the former usual type of rotatable agitator iseliminated as well as objections thereto as the knife edge suspensionfor the coiled pipe doesnot require lubrication of any kind and in viewof the nature thereof, friction is reduced to a minimum or practicallyeliminated. The same results possible with a rotatable agitator areaccomplished by .the present construction in a more efficient manner andwith a reduced. number of struc turalelements. p

VVhilethere is herein shown and described the preferred embodiment ofthe present invention, itis nevertheless to be-understood that minorchanges may be made therein without departing from the spirit and scopeof the invention as claimed.

What is claimed as new is I a 1. In combination, an open-top vat, aheatexchange agitating coil suspended within and supported by the ends'of,the vat for oscillation about a horizontal axis and freely removablefrom the vat upon elevation of the same, and oscillating means for thecoil including actuating elements freely separable when the coil iselevated, said actuating elements embodyinga rotatable eccentric pin atone end of the vat and a depending arm fixed to the axis of oscillationof the coil. and having a longitudinally bifurcated lower end straddlingsaid eccentric pin.

2. In combination, an open-top vat, a heat exchange agitating coilsuspended within and supported by the ends of the vat for oscillationabout a horizontalaxisand freely removable from the vat upon elevationof the same, osclllatmg means for the coil ineluding actuating elementsfreely separable when the coil is elevated, said coil including endpintle members having rigid depending knife edge bearing-elements, andsaid ends of the vat having open-top sockets provided with V-shapedbottom portions in Y the crotches of which said bearing elements seat.

In testimony whereof I affix my signature.

JOHN BENJAMINE HINSHAW.

